I got to thinking about the late 60's Patrick McGoohan classic The Prisoner filmed in the Welsh village of Portmeirion, designed and built by Sir Clough Williams-Ellis around 1925-1931. There are a number of 'villages', that have been built in short order, where you wouldn't know where you are or what country you're in. They are small parcels land that are totally out of context with their surroundings and give the illusion of being somewhere else. Aside from the obvious theme parks, there are two that come to mind:
The Belgian Village from the 1964-1965 New York World's Fair (124 buildings) lasting little over a year and a half:
The Old World Village in Huntington Beach California, built in 1977 and still there (50 buildings):